TEXAS · WELLS · MARTIN COUNTY · ANCHOR -B- LEASE · API 42-317-33409 · DISTRICT 7B
Anchor -B- #1
Martin County · Spraberry (Trend Area) field · Shut In · Vertical
Anchor -B- #1 (API 42-317-33409) is a well in Martin County operated by Diamondback E&P LLC, completed December 28, 2023 and listed as shut in on the RRC schedule, shut in December 1, 2023.
The RRC has issued one drilling permit, issued December 29, 1986, permitted to 9,624 ft.
It was permitted by Parker & Parsley Petroleum CO. and has since transferred to Diamondback E&P LLC on the wellbore schedule.
Completion filings report 7 formation tops, including Upper Spby, Spraberry, Lower Spby, Dean.
Its lease has reported 26.9K barrels of oil and 77.6K mcf of gas since January 1993, last reporting volume in October 2023.
Operator of record
Permitted by Parker & Parsley Petroleum Co.; the EWA schedule now lists a different operator.
- Based in
- Midland, TX
- P-5 status
- Active – Extension (X)
- P-5 last filed
- May 4, 2026
- Permits on file
- 5,251
- Phone
- (432) 221-7400
SOURCE · RRC EWA WELLBORE SCHEDULE
What each RRC source says
| Wellbore schedule | Diamondback E&P LLC |
| Production reports | Diamondback E&P LLCthrough Oct 2023 |
| Latest permit | Parker & Parsley Petroleum Co.Dec 29, 1986 |
The sources disagree, which usually means a transfer or a lease-level production filing by a different entity. Petrora goes with the schedule.
- 9,624
- total depth, ft
- 1
- permits on file
- Dec 29, 1986
- last permit issued
- Dec 28, 2023
- completed
- 26.9K
- cumulative oil, bbl
- 77.6K
- cumulative gas, mcf
PRODUCTION FROM PDQ LEASE REPORTS · Jan 1993 THROUGH Oct 2023
Regulatory status · RRC wellbore file
- Schedule
- ON SCHEDULE
- Completed
- Dec 28, 2023
- Shut in
- Dec 1, 2023
- Plugged
- —
Operator's P-5 on the schedule: Active (A)
Surface location
No coordinates on the permit record yet. The RRC's GIS record usually lands within days of issuance; historical master-file permits never carry one.
Lease production
PDQ LEASE REPORTS · REPORTED THROUGH APR 2026
Texas reports oil by lease, not by well. These are the lease this well is completed on; this well is the only one on it.Why →
| Lease | Field | Reporting operator | Wells | Oil, bbl | Gas, mcf | Reported |
|---|---|---|---|---|---|---|
| Anchor -B- O-10-31111 | Spraberry (Trend Area) | Diamondback E&P LLC | 1 | 26.9K | 77.6K | Jan 1993 – Oct 2023 |
Gas, mcf lease total
Last 12 months 0 · prior 12 0
Oil, barrels lease total
Last 12 months 0 · prior 12 0
Chain of custody
Every operator that reported production on this well's lease, in order.
- 1Parker & Parsley Development Co.Jan 1993 → Feb 1995
- 2Parker & Parsley Development L.PMar 1995 → Aug 1997
- 3Pioneer Natural Res. USA, Inc.Sep 1997 → Apr 2022
- 4Diamondback E&P LLCMay 2022 → Sep 2023
Permits
| Permit | Type | Operator | Received | Issued | Spud | Depth |
|---|---|---|---|---|---|---|
| 324844-99 | Drill | Parker & Parsley Petroleum Co. | Dec 29, 1986 | Dec 29, 1986 | — | 9,625 |
Completions
| Completed | Lease | Field | Operator | Status | Depth |
|---|---|---|---|---|---|
| Dec 28, 2023 | Anchor -B- O-10-31111 | Spraberry (Trend Area) | Diamondback E&P LLC | Shut In · shut in Dec 1, 2023 | 9,624 |
Formation tops
As filed on W-2/G-1. Subsea from 2,850 ft elevation.Download CSV →
Perforations
Perforated and open-hole intervals.
| From | To | Type |
|---|---|---|
| 7,962 | 8,324 | Perforated |
| 8,513 | 8,931 | Perforated |
| 9,268 | 9,464 | Perforated |
Casing
Strings as reported, shallowest first.
| Casing in | Set at | Hole in | Cement |
|---|---|---|---|
| 13.375 | 380 | 17.5 | 350 S |
| 8.625 | 4,218 | 11 | 250 S |
| 4.5 | 9,624 | 7.875 | 1,250 S |
Completion filings
W-2 and G-1 reports on record in the RRC wellbore file, newest first. The suffix identifies the wellbore or completion event. The record date is the RRC's own date on the record, not the day the report was filed: 462,034 of the state's filings carry 1984-01-12. About these reports →
| Suffix | RRC record date | W-2 / G-1 date | Logs referenced |
|---|---|---|---|
| 00 | Mar 7, 2024 | Jan 31, 2024 | — |
| 00 | Mar 30, 1987 | Mar 11, 1987 | Yes |
| 00 | Mar 17, 1987 | — | — |
The source documents
Petrora holds the structured record. The scanned filings live at the RRC; these links open its search already filled in for this API.
- Wellbore filings for 42-317-33409 → W-2, G-1, plugging reports, as PDFs
- Completion packets for 42-317-33409 → scanned completion filings
Log images filed since 2004 open from the RRC's log search for this well; none are loaded here for it. The University Lands library has no per-well link: then paste it into its search.
About this data
Permits from the RRC OGA049M master and daily daf420 files; wellbore and operator of record from the EWA schedule, weekly; completions, formation tops, casing, and perforations from the dbf900 wellbore file; production from PDQ lease reports, which lag two to three months; injection from UIC permits, H-10 reports, and TexNet daily volumes; earthquakes from the TexNet catalog.
New to these records? How to read a well page · API numbers · completion reports and tops · why production is by lease
Developers: this page as JSON is GET /v1/data/wells/31733409, documented in the API reference.